Rotary fluid-transmitter.



P. ENGLISH. ROTARY FLUID TRANSMITTER.

APPLIOATION FILED .IUL'Y 13,1910.

1,007,983. Patented Nov.7, 1911.

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N 2 S f C; I s #e 22:@ E. N LTT' l' kb Im/fn for ESA/'fafa .UNITEDSTATES PATENT OFFICE. i

PETER ENGLISH, 0E SAN FRANCISCO, CALIFORNIA.

ROTARY FLUID-TRANSMITTER.

Specification of Letters Patent.

Application led Ju1y 13, 1910. Serial No. 571,770..

To all whom 'it may concern:

Be it known that I, PETER ENGLISH, citizen of the United States,residing in the city and county of San Francisco and State ofCalifornia, have invented new and useful Improvements .inRotaryFluid-Transmitters, of which the lfollowing is a specification. v

This invention relates to fluid transmitters and particularly pertainsto that class of transmitters in which the iuid is moved by wingsorvblades rotating Iin connection with an eccentrically mounted drumwithin a cylindrical casing. v

It is the object of this inventionto provide a rotary device of theabove description which is simple in construction and operation, and inwhich means are provided for taking up wear of the drum within thecasing, and means by which back- -How will be prevented where the pumpis operating against a head of considerable pressure. l 1

The invention consists of the parts and the construction and combinationof parts as hereinafter more fully. described and claimed, havingreference lto the accompanying drawings, in Which- Figure 1 is alongitudinal vertical section of the inve tion. Fig. 2 is a transversesection on the ine X X, Fig. 1. Fig. 3 is a detail in perspectiveshowing the 1manner of actuating the take-up disk.

In the drawings 'A represents a kdrive shaft, by Vwhich the drum isoperated, and whichmay be rotated by yany suitable power.

This shaft Apasses through a stuffing-box 2 and is supported upon rollerbearings 3 mounted within a tubular extension 4- formed on a cover plate5 which lcloses one end of a cylindrical casing 6 within which theoperative partsof the pump are mounted, the shaft A extending into thecylinder 6 eccentric to the axial line the casing being stationary.

'Rigidly secured upon the inner endv of the drive shaftA is a hub 7 of ahollow drum 8, uponthe opposite side of which is formed a hub 9 carryinga raceway 10, land which revolves within a bearing 11 mounted in acoverplate 12 on the other end of the cyl-l inder 6. VBall bearings l13areinterposed vbetween the raceway 10 on the hub 9V and the bearing 11on the cover-plate 12, so as to reduce the friction at this polnt.

An inwardly extending boss 14 is formedterior of the'drum 8, an

thereof, and y on,'and eccentric to, the center of the coverplate '12and projects within the hub 9 of the drum 8; and mounted in the boss 14is a pin 15 which extends through the drum 8 nearly to the opposite wallthereof, the pin 15 being disposed on theaxial line of the cylinder6 andeccentric to the axial line of the hollow drum 8; From the foregoing itwill beseen that the drive shaft A, drum 8, hubs 4-14, andthe bearing 11are coaxial with each other, and eccentric to theL v cylinder 6, Whilethe pin 15 is concentric to said cylinder.l The pin 15 is tapered at thepoint where it passes through the boss 14 and is securely held in placeby means of a nut 16 which is screwed on its outer end.

VUpon the pin 15 and within the drum 8 are pivoted the inner ends ofthree wings or vanes17; each wing having a wide head extending betweenthe cover-plate 12 on one side and a takemp plate 18 on the other side.Thatis to say, the wide portions of the wings 17 are equal tothe widthof the Patented Nov. v7, 1911i.

These slots 21 permit the wings to oscillate in the movement of thedrum, as hereinafter appears.` The gibs 19 serve two purposes. Theylsupport'the ends of the wings' in their proper position, whilepermitting them-to have an oscillating movement, and they serve Vto makea fluid-tight joint at the' parts where the blades pass through thecircumference of the dru K I The take-up plate 18v is Amounted in the jcasing 6 in the following manner: V-Ahub 22' is'formed on thel back ofthe plate 18 and f I is Screw-.threaded on its'outer surface..` A

hollow, cylindrical extension 23 is 4formed on the cover-plate 5 and isthreaded vonltsinner surface so that the hub 22 onthe plate 18 maybescrewed 4into thepart 23.' Gear? teeth 24 are formed on the outer edgeof the 4periphery of the--rtake-up 'plate "18, as

.shown in'4 Fig. 3, which are adapted'to be ,engaged by a pair lof Spursor pins; 25 'on' a iio spindle 26 revolubly mounted in the coverplateThe spindle 26 lsprovided with a wrench-hold -27 on its outer end,bylwhichit may be turned to rotate the take-up plate 18 and thus move 1tbackward or forward on itsthreaded bearnig. Intake and dischargeopenings 28-29 are provided -in the' cylinder 6 on opposite sides and ashortdistance above the bottom thereof, as shown in Fig. 2. v

`In the part of they inner surface of the cylinder 6 which is nearestthe center of the ldrum 8, and between the intake and discharge orifices28-`29 there is formed a cavity or socket 30 extending the full width ofthe drum 8. The drum 8 is so mounted that. its outer periphery willextend a short distance into the socketBO, so that it will fallbeyond oroverlap the inner periphery or surface of the cylinder G. rl`his featureof construction is important', as it causes the outer edges` of thewings 17 to come within the outer surface of the drum 8 atthis pointwhen thedrum is revolved. An abutment .Wear on the block. l

Since the innerisurface of the abutment block 28 accurately conformstothe surface of the drum 8, the latter can, between the intake anddischarge ports 2829 revolve in closevcontactvwith theinner surface ofthe f abutment block; and, owing to the. eccentric location of the pin 15, upon which the inner ends of the wings 17 are pivoted, it results inthe outer end of'eachwing, in traveling over the above-mentioned surfacebetween the intake and discharge openings by said .eccentricity and theoverlap of the outer periphery of the drum,bein withdrawn in- Wardlywithin the surfaceo the'drum, as bev fore described, byreason of theouter end of each wing following at all times the circle of the innersurface of the cylinder 6. .It is thus provided that the outer ends ofthe Wings 17 can never come'in contact with the l abutment block 31 andcause a jar, shock or vibration, as would occur if such Contacty tookplace.'

" The opera-tion ofthe invention is -as follows: The shaft A lon beingrotated causes the drum 8 to revolve in the cylindrical casing 6, whichis iixedly mounted on any suitable support. YThe rotation of the drum 8causes thewings or vanes 17 to travel therewith, which by reason ofbeing pivotally mounted eccentric to the drum 8 are caused to slide backand forth between the gibs 19, the gibs permitting of the necessaryoscillation taken by the Wings 17 in the lcourse of ytheir travel. Theouter edgesv and sides of the wings 17 being in elosecontact with theinner walls of the cylinder 6 atl all times, a suction is created aseach blade passes the intake opening 28. This causes the fluid to bemoved to enter the casingG behind a blade 1 7, and it is carried aroundthe passage between the youter surface of the drum 8 and thel innersurface of the casing 6 by the blade following, to be finally dischargedthrough the. opening '29. The abutment block 81 being kept in closecontact with the drum 8 prevents any back-flow of the fluid being moved,and thus enables'the intake and forcing of the fluid out the dischargeopening 29 against great pressure.-

It is obvious that the drum 8 may be rotated in either direction'so asto discharge 'through 4either the opening 28 or 29.

Having thus described my invention, what I claim and desire to secureby- Letters Patent isl '1. .T he combination in a device for movingfluids, of a stationary cylindrical casing having alined inlet anddischarge passages vnearone side, a revoluble drum eccentrieally mountedin said casing, wings or vanes pivtotally mounted eoncentrically 1n thecasing and'radially slidable in said drum, vmeans for taking up thewear` of the sides of the wings and drum, said means comprisingy awear-compensating y late turnably mounted on oneenld and insi e of saidcasing having a hub portion threaded into engagement with thecorrespondingportion of the casing, and means for rotating the platefrom the exterior of said casing.

2. The combination in a 'Huid transmitting device, of a stationarycylindrical casing with inlet and discharge openings, an eccentricall'yjournaled, revoluble drum with radially slidable varies pivotedconcentrically Within the casingl a threaded wear plate within the coverplate of the casing, said plate having peripheral teeth, and a turnableshaft or spindle having pins or teeth adapted to engagel the teeth ofthe wear plate to revolve and advance it.

In testimony whereof I have hereunto set' my hand in the presence of twosubscribing.

witnesses. v

yPETER ENGLISH.

lVitnesses: I i

CHARLES H. PENFIELD, CHARLES EDELMAN.

